Lock-nut.



w. TQWHALEY.

LOCK NUT.

APPLICATION FILED NOV. 29 I913. RENE WED APR- 14, I917.

Patented Aug. 7, 1917.

Fig.1.

a nvemtoz TWhCI/ZQQ WILLIAM T. WHALEY, 0F LOS ANGELES, CALIFORNIA.

LOCK-NUT.

Specification of Letters Patent.

Patented Aug. '7, 191?.

Application filed November 29, 1913, Serial No. 803,770. Renewed April14, 1917. Serial No. 162,189.

To all whom it may concern:

Be it known that I, WILLIAM T. WHALEY, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented. new and useful Improvements in Look-Nuts, ofwhich the following is a specification.

The present invention relates to improvements in means for normallysustaining a nut and bolt in locked position, and resides in theconstruction, combination and arrangement of parts set forth in thefollowing specification and falling within the scope of the appendedclaim.

In the drawing:

Figure 1 is a view illustrating a nut in locked position on a bolt,

Fig. 2 is an enlarged front elevation of the same,

Fig. 3 is a detail perspective view of the locking pawl.

Referring now to the drawings in detail, the numeral 1 designates a boltwhich has its shank formed with a plurality of spaced longitudinallyextending depressions or channels 2, the said channels each providing awide straight wall and an angular shoul- The nut is designated by thenumeral 3, and its threaded bore is adapted to co-act with the threadsof the bolt. The outer face of the nut has its bore surrounded by anintegrally formed annular flange or sleeve 4, the said flange beingformed with a slot or opening 5.

Pivotally connected, as at 6, to the said outer face of the nut is alocking dog 7 The dog is formed with an angular tooth 8 which enters theslot 5 of the flange 1, and is provided with an angular tail 9 whichextends from its pivot in a direction opposite to the end which isformed with the tooth 8. Secured upon the inner face of the tail 9 ofthe dog 7 through the medium of a pin 10, is a flat curved spring 11which exerts a tension between the tail of the dog and. the roundedperiphery of the flange 4. The tail 9 of the dog is preferably inclinedfrom the outer to the inner face thereof, the said inclination startingat the juncture of the tail with the dog proper and being arrangedangularly to the pointed end of the tail upon the outer face thereof, sothat a beveled surface A is arranged upon the above-mentioned inclinededge B, the said beveled portion projecting beyond one of the faces ofthe nut. This beveled portion A readily permits of an instrument, suchas a socket nut, being arranged upon the nut to actuate the dog to swingthe same to an unlocking position, while at the same time it does notinterfere with the arrangement of an ordinary monkey wrench upon thedog.

From the above description, taken in connection with the drawing, itwill be appar ent that the nut 3 may be screwed entirely home upon thebolt 1, the dog swinging upon its pivot against the action of its spring11 and passing into the depressions or channels 2 and riding over thethreads of the bolts, but a retrograde movement of the nut will causethe angular tooth to engage with an angular shoulder of the channel 2 toprevent the unscrewing of the nut and bolt.

When it is desired to remove the nut from the bolt, the jaws of thewrench will be brought to contact with the outer edge of the tail 9 ofthe dog 7, which movement will cause the dog to swing upon its pivot tobring its tooth out of engagement with the channels 2 of the bolt 1.

Having thus described the invention, what I claim is:

In combination, a bolt provided with a plurality of longitudinallyextending channels, a nut threaded thereon, an annular flange formedintegral with one side of the nut, encircling portions of said channelsand contacting with the threads of the bolt adjacent the nut, saidflange being formed with a. slot, a locking dog pivoted to the side ofthe nut and having its bill passing through the slot so as to engage oneof said channels, and a leaf spring having one extremity bearing on theouter surface of said flange and its remaining extremity secured to saiddog.

In testimony whereof I aflix my signature in presence of two witnesses.

WILLIAM T. WHALEY.

Witnesses JOHN A. FRASER, THOMAS KELLY.

Gopies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). G.

